Detachable swivel.



1D. M. CORSN &`G. T. GILKERSON.

' DETAGHABLE SWIVEL.

APPLIGATION FILED 11111.25, 1909.

Patented Dec. 14, 1909.

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DONALD M. OURSON AND GEORGE T. GILKERSON, OF LOS ANGELES, CALIFORNIA.

DETAC-IABLE SWIVEL.

Specification of Letters Patent.

Patented Dec. 14, 1909.

To all whom it may concern:

Be it known that we, DONALD M. ConsoN and GEORGE T. GiLnnnsoN, bothcitizens of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, have invented new and usefulImprovements in Detachable Swivels, of which the following is aspecification.

Our invention relates to a detachable swivel connection for punching bagsupporting ropes, and the main object thereof is to provide a noveldevice consisting of a plurality of parts, whereby the rope swiveledthereto may be instantly detached therefrom.

By means of our improved swivel the broken rope may be instantlydetached therefrom and replaced in the minimum space of time.

In the accomplishment of the above objects we preferably form ourimproved swivel of a plurality of parts consisting of a rigid memberprovided with spring engaging slots and a removable member having aswivel secured thereto provided with locking springs adapted to engagethe slots in the rigid member and lock the two members in detachablerelation to each other.

In the drawings forming a part of the specification, Figure 1 is a sideelevation of our improved swivel having a punching bag attached thereto,parts ofthe swivel being broken away for clearness of illustration. Fig.2 is a central vertical section through the swivel. Fig. 3 is a sideelevation partly in section of another' form of swivel. Fig. 4; is adetail section of the form of swivel shown in Fig. 3 with the membersdrawn apart.

Referring more particularly to the drawings, 5 designates a stationarysupport, such as a ceiling to which our improved swivel is adapted to beattached. The swivel preferably consists of a cylindrical stationarymember 6 provided at the top thereof with an annular iange 7 providedwith a plurality of apertures S, through which the screws 9 are adaptedto pass and secure the stationary member rigidly to the support. Member6 is provided in the walls thereof with two oppositely disposed slots 10which are adapted to be engaged by spring locking tongues 11, the endsof which are rigidly secured to the upper end of the detachable member12 of the swivel The exterior diameter of this member is slightlysmaller than the interior diameter of member G into which it is adaptedto chamber. Spring locking tongues 11 are adapted to enter the slots 10when the member 12 is forced in place, the member 12 having oppositelydisposed apertures 13 to permit of the free and unrestricted inwardmovement of the horizontally disposed ends of the tongues. Member 12 isprovided in the ends thereof with a spherical apertured seat 1i, asemispherical cup-shaped member 15 which comprises the swivel properadapted to nest therein. The edge of aperture 1i is rounded so that whenthe rope contacts against it, it will not be injured by cutting. Swivelmember 15 is also provided with an aperture 16 through which the rope 17which supports the punching bag passes, the upper end of the rope beingtied in the form of a knot 1S which is adapted to rest in the member 15.v

In Fig. 3 of the drawings we have illustrated another form of swivelattachment which preferably consists of a cylindrical member 20 providedwith an annular 'Harige 21 on its upper' edge and adapted for rigidattachment to a support Cylindrical member 2O is provided withoppositely disposed apertures 22 in the wall thereof through which anoperators linger may be passed to detach the swivel as will be morefully described hereinafter. Attached to member 20 by bolts or rivets 23and nesting' therein is a cylindrical member 24 which is provided withan annular out away portion 25 which forms with the inner face of thewall 20, an annular recess 26 which is adapted to receive the uppercylindrical end 2T of a detachable member 28. The bottom of recess 26 isprovided with an annular gasket 26 preferably formed of rubber or otherpliable material that will eliminate all sounds occasioned by thestriking of the two members when the bag is in use. Member 24 is alsoprovided with oppositely disposed slots 29 which register with the slots22 formed in the outer shell of member 20. Member 2O is also providedwith oppositely disposed apertures 30, through which locking dogs 31which are secured to the lower end of the locking spring 32 are adaptedto pass and thus securely hold member 2S in rigid engagement with member20. The springs 32 are heldin rigid engagement with member 20 by thebolts 23. As in the preferred form, member 9.8 is provided with asemispherical cup shaped member 33 which is adapted to swivel the rope.

Vhen an operator is usingthe punching bag` and accidentally breaks therope attached thereto, a simple linger pressure on the locking tongueswill instantly disengage the detachable member and allow him to replacethe rope with a new one7 the whole operation consuming lit-tle time.

It will be observed from the foregoing' description that we haveprovided a useful device, whereby the swivel member may be detachedtherefrom or secured thereto with little or no inconvenience.

Havingdescribed our invent-ion what we claim as new and desire to secureby Letters Patent is l. In a device of the class described, a stationarycylindrical member provided with a plurality of oppositely disposed lockengaging slots7 a movable cylindrical member provided with an aperturein the lower end thereof, a pair of spring locking dogs secured to themovable member, said dogs adapted to engage the slots formed in thestationary member when the two members are forced together, and anapertured swivel member mounted in the movable member.

2. In a device of the class described, a stationary cylindrical memberprovided with slots, a movable member provided with spring dogs, saiddogs adapted to engage the slots formed in the stationary member whenthe movable member is forced into engagement with the stationary member,and an apertured swivel mounted in the movable member.

In witness that we claim the foregoingY we have hereunto subscribed ournames this 19th day of January, 1909.

DONALD M. CORSON. GEO. T. GILKERSON. vWitnesses EDMUND A. STRAUSE, M. A.PALMER.

